1. Politics is forbidden.
2. CP content is forbidden.
3. Doxxing is forbidden (posting personal data, addresses, phones, private chats, etc.).
4. Do not break the board! Spam, wipes, bots, and other garbage may lead to a ban.
5. Invite abuse can affect the inviter too.
6. Moderation decisions are final. Discussion is possible only in exceptional cases.

Some boards may have their own informal norms (/bb/ is minimally moderated, and on /a/ you can be banned for loving ghouls).